Rapid quantitative blood sampling test tube
By setting up a fixing plate and an adjustment mechanism in the blood collection test tube, the problem of difficult blood collection volume is solved, and the precise control and safety of blood collection volume is achieved.
Patent Information
- Application Number
- CN202422100945.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The existing blood collection vessels are prone to loss and leakage during multiple blood collections, and the amount of blood collection is difficult to control, which increases the risk of nurses' errors and needle stab injuries, especially when the blood collection vessels are inclined, the scale is not easy to observe.
A fast quantitative blood collection test tube is designed, by setting the first and second fixing plates in the blood collection tube, and controlling the distance between the second fixing plate and the bottom of the blood collection tube through an adjustment mechanism, ensuring the blood flow direction with a connecting tube and a sealing ring, so as to achieve precise control of the blood collection amount.
It realizes intuitive control of blood collection volume, reduces the risk of blood collection vessel loss and leakage, reduces the probability of nurses making mistakes and needle stab injuries, and improves the safety and accuracy of the blood collection process.
Smart Images
Figure CN223144754U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a rapid quantitative blood collection test tube. Background Art
[0002] Blood collection is carried out in a hospital, and then blood test through laboratory tests is a routine test item for disease diagnosis in the hospital. During blood collection, a blood collection tube is required to store and transport the blood. Currently, the blood collection tube is a vacuum blood collection tube. After a medical staff selects a suitable blood collection site, generally the vein site on the arm, the blood collection needle is inserted, and then the end of the blood collection needle is inserted into the blood collection tube, and the blood flows into the blood collection tube through negative pressure.
[0003] During the actual blood collection process, sometimes there are many items to be detected, resulting in the need for six or seven, or even more of the same type of blood collection tubes; the increase in the number of blood collection tubes will increase the risk of loss of blood collection tubes and missed blood collection, increasing the probability of errors by nurses; at the same time, the increase in the number of times of repeatedly inserting the blood collection tube also increases the risk of blood leakage from the blood collection needle and needle stick injuries to nurses. Currently, most test tubes use the scale lines on the outer side of the test tube to uniformly fix the blood collection volume. For a small number of blood collection tubes, although they can also collect blood specimens in different doses, the scales are fixed on the outside and are relatively easy to read only when vertical. When nurses collect blood, most of the time the blood collection tubes are inclined, and the external scales are not easy to observe, easily resulting in too much or too little blood collection volume, making it difficult to control the blood volume in the blood collection tube to a certain extent. Content of the Utility Model
[0004] The purpose of the utility model is to provide a rapid quantitative blood collection test tube that can control the blood volume in the blood collection tube.
[0005] The rapid quantitative blood collection test tube includes a vertically arranged blood collection tube and a tube cap. A first fixing plate is horizontally arranged in the blood collection tube, and a second fixing plate is horizontally arranged in the blood collection tube below the first fixing plate. First sealing rings are arranged between the first fixing plate and the second fixing plate and the blood collection tube. A first through hole communicating up and down is opened on the right side of the first fixing plate, and a second through hole communicating up and down is opened on the left side of the second fixing plate. The first through hole and the second through hole are connected and communicated through a connecting pipe. An adjusting mechanism for adjusting the distance between the second fixing plate and the bottom of the blood collection tube is arranged on the blood collection tube.
[0006] Further, the adjusting mechanism includes a first sleeve vertically fixed on the top of the first fixing plate. A screw rod in threaded fit with the first sleeve is arranged in the first sleeve. The top of the screw rod is vertically fixed with a fixing column. A third through hole for the fixing column to pass through is opened on the tube cap. The top of the fixing column passes through the third through hole and is located above the tube cap. A first bearing is installed between the fixing column and the third through hole, and a second sealing ring is arranged between the fixing column above the first bearing and the third through hole.
[0007] Further, the first sleeve is fixed to the top of one side of the first through hole on the first fixing plate away from the first fixing plate.
[0008] Further, a handle is fixed to the top of the fixing post.
[0009] Further, the adjusting mechanism includes a movable plate horizontally arranged in the blood collection tube below the second fixing plate. A third sealing ring is arranged between the movable plate and the inner side wall of the blood collection tube. A fixing rod is vertically fixed to the bottom of the movable plate. A fourth through hole for the bottom end of the fixing rod to pass through is formed in the bottom of the blood collection tube. The bottom end of the fixing rod passes through the fourth through hole and is located below the blood collection tube, and a bottom plate is horizontally fixed. A moving component for moving the bottom plate up and down is arranged on the outside of the blood collection tube.
[0010] Further, the moving component includes a second sleeve sleeved on the outside of the blood collection tube. Internal threads are formed on the inner side wall of the second sleeve. External threads that are in threaded fit with the internal threads on the inner side wall of the second sleeve are formed on the outside wall of the blood collection tube. The second sleeve is fixed to the bottom plate through a connecting component. A circular groove for the bottom end of the fixing rod to insert into is formed in the top of the bottom plate. A second bearing is installed between the fixing rod and the circular groove.
[0011] Further, the connecting component includes a fixing tube. The fixing tube is sleeved on the blood collection tube below the second sleeve. The top end of the fixing tube is fixed to the bottom end of the second sleeve. The bottom end of the fixing tube is fixed to the top of the bottom plate.
[0012] Further, a fourth sealing ring is arranged between the fixing rod and the fourth through hole.
[0013] Further, a reinforcing rod is vertically fixed between the first fixing plate and the second fixing plate.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] By controlling the distance between the second fixing plate and the bottom of the blood collection tube, the utility model controls the capacity between the second fixing plate and the bottom of the blood collection tube. By filling the space between the second fixing plate and the bottom of the blood collection tube with blood, the amount of blood collected in the blood collection tube can be controlled. It is relatively intuitive and has a reference standard, and the control of the blood collection amount is relatively easy. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the utility model;
[0017] Figure 2 is another schematic structural diagram of the utility model;
[0018] Names of components in the figure: 1. Blood collection tube; 2. First sleeve; 3. Tube cap; 4. Screw; 5. Handle; 6. First fixing plate; 7. Connecting tube; 8. Second fixing plate; 9. Connecting rod; 10. Second sleeve; 11. Movable plate; 12. Fixed tube; 13. Fixed rod; 14. Bottom plate. Detailed implementation mode
[0019] The following further illustrates the present utility model through specific embodiments in conjunction with the accompanying drawings, but it is not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present invention.
[0020] A rapid quantitative blood collection test tube described in this embodiment, as Figure 1 shown, includes a vertically arranged blood collection tube 1 and a tube cap 3. The structures of the blood collection tube 1 and the tube cap 3 are known in the prior art and are existing vacuum blood collection tubes. A first fixing plate 6 is horizontally arranged in the blood collection tube 1, and a second fixing plate 8 is horizontally arranged in the blood collection tube 1 below the first fixing plate 6. The first fixing plate 6 and the second fixing plate 8 are circular structures. First sealing rings are arranged between the first fixing plate 6 and the second fixing plate 8 and the blood collection tube 1. The first sealing rings are existing reciprocating dynamic sealing rings. A first through hole communicating up and down is opened on the right side of the first fixing plate 6, and a second through hole communicating up and down is opened on the left side of the second fixing plate 8. The first through hole and the second through hole are connected and communicated through a connecting tube 7. The connecting tube 7 is obliquely fixed between the first fixing plate 6 and the second fixing plate 8. The diameters of the first through hole and the second through hole are the same, and the inner diameter of the connecting tube 7 is the same as the diameters of the first through hole and the second through hole, which is convenient for blood circulation.
[0021] There is a gap between the first fixing plate 6 and the second fixing plate 8. The gap distance between the first fixing plate 6 and the second fixing plate 8 makes the end of the connecting tube 7 close to the second through hole lower than the end of the connecting tube 7 close to the first through hole after the blood collection tube 1 is tilted at 45 degrees. Because the maximum tilt angle of the general blood collection tube 1 is 45 degrees, and generally it is about 20 - 30 degrees conventionally. In this way, the connecting tube 7 is in a state where the end close to the second through hole is lower than the first through hole within the range of 45 degrees or less, so that blood can flow from the first through hole through the connecting tube 7 into the second through hole.
[0022] As Figure 1As shown, a first sleeve 2 is vertically fixed on the top of the first fixing plate 6, and a screw 4 threadedly matched therewith is arranged in the first sleeve 2. An internal thread threadedly matched therewith is provided on the inner wall of the first sleeve 2. A fixing column is vertically fixed on the top of the screw 4. The diameter of the fixing column is consistent with the diameter of the screw 4. The fixing column is an extension of the screw 4, which is equivalent to that the top of the screw 4 is not provided with a thread. A third through hole for the fixing column to pass through is provided on the pipe cap 3. The top of the fixing column passes through the third through hole and is located above the pipe cap 3. A first bearing is installed between the fixing column and the third through hole. The thickness of the top of the pipe cap 3 is relatively thicker than that of the existing pipe cap. The inner ring of the first bearing is fixedly sleeved on the fixing column, and the outer ring of the first bearing is fixed to the third through hole. The fixed column is allowed to rotate freely through the first bearing, and the fixed column is connected to the tube cap 3. A second sealing ring is provided between the fixed column above the first bearing and the third through hole. The second sealing ring is an existing rotating dynamic sealing ring. The second sealing ring can prevent the outside air from entering the blood collection tube 1. When in use, the screw 4 is rotated to adjust the combined length between the screw 4 and the first sleeve 2. The screw 4 is connected to the tube cap 3, and the tube cap 3 is connected to the top of the blood collection tube 1. Therefore, when the length of the first sleeve 2 and the screw 4 changes, it will drive the first fixed plate 6 to move. The movement of the first fixed plate 6 will drive the second fixed plate 8 to move through the connecting tube 7, thereby adjusting the distance between the second fixed plate 8 and the bottom of the blood collection tube 1. The content of this paragraph as a whole constitutes an adjustment mechanism for adjusting the distance between the second fixed plate 8 and the bottom of the blood collection tube 1.
[0023] The first sleeve 2 is fixed at the top of the side away from the first through hole on the first fixing plate 6, the first through hole is located on the right side of the first fixing plate 6, and the first sleeve 2 is vertically fixed at the top of the left side of the first fixing plate 6, so that when blood enters the blood sampling tube 1 above the first fixing plate 6, the inclination of the blood sampling tube 1 will cause the blood to flow to the side of the first through hole, thereby preventing blood from flowing into between the screw 4 and the first sleeve 2.
[0024] A handle 5 is fixed on the top of the fixing column. The handle 5 is a circular structure. The handle 5 increases the contact area between the hand and the fixing column, making it easier to hold and thus easier to rotate the screw 4.
[0025] like Figure 2 As shown, a movable plate 11 is horizontally arranged in the blood sampling tube 1 below the second fixed plate 8, and the movable plate 11 is a circular plate. A third sealing ring is arranged between the movable plate 11 and the inner wall of the blood sampling tube 1, and the third sealing ring is an existing reciprocating dynamic sealing ring. A fixing rod 13 is vertically fixed to the bottom of the movable plate 11, and a fourth through hole for the bottom end of the fixing rod 13 to pass through is opened at the bottom of the blood sampling tube 1. The bottom end of the fixing rod 13 passes through the fourth through hole and is located below the blood sampling tube 1, and a bottom plate 14 is horizontally fixed.
[0026] A second sleeve 10 is sleeved outside the blood collection tube 1. An internal thread is provided on the inner side wall of the second sleeve 10, and an external thread that is in threaded fit with the internal thread on the inner side wall of the second sleeve 10 is provided on the outer side wall of the blood collection tube 1. A circular groove for inserting the bottom end of the fixing rod 13 is provided at the top of the bottom plate 14. A second bearing is installed between the fixing rod 13 and the circular groove. The inner ring of the second bearing is fixedly sleeved on the fixing rod 13, and the outer ring of the second bearing is fixed to the circular groove. The fixing rod 13 and the bottom plate 14 are connected through the second bearing, and the rotation of the bottom plate 14 will not drive the fixing rod 13 to rotate, thereby reducing resistance.
[0027] The second sleeve 10 is connected to the bottom plate 14 through a fixing tube 12. The fixing tube 12 is sleeved on the blood collection tube 1 below the second sleeve 10. The top end of the fixing tube 12 is fixed to the bottom end of the second sleeve 10, and the bottom end of the fixing tube 12 is fixed to the top of the bottom plate 14. The bottom plate 14 is a circular plate, and the diameter of the bottom plate 14 is the same as the outer diameter of the fixing tube 12 and the outer diameter of the second sleeve 10; the whole content of this paragraph constitutes a connecting component for fixing the second sleeve 10 to the bottom plate 14. Of course, in some embodiments, the connecting component can also be several connecting rods.
[0028] The above two paragraphs of content together constitute a moving component for moving the bottom plate 14 up and down; through the threaded fit between the second sleeve 10 and the blood collection tube 1, the second sleeve 10 moves up and down on the blood collection tube 1, and the up and down movement of the second sleeve 10 will drive the fixing tube 12 and the bottom plate 14 to move up and down, and the bottom plate 14 will drive the movable plate 11 to move up and down through the fixing rod 13. Of course, in order to observe the position of the movable plate 11 in the blood collection tube 1, the second sleeve 10 and the fixing tube 12 are made of transparent materials, such as plastic; of course, in some embodiments, the moving component can also be such that the second sleeve 10 is not in threaded fit with the blood collection tube 1, and bolts for fixing it to the blood collection tube 1 are provided on the second sleeve 10. The content of this paragraph and the above 3 paragraphs of content together constitute another structure of an adjusting mechanism for adjusting the distance between the second fixing plate 8 and the bottom of the blood collection tube 1.
[0029] A fourth sealing ring is provided between the fixing rod 13 and the fourth through hole. The fourth sealing ring is a reciprocating dynamic sealing ring. Through the fourth sealing ring, external air can be prevented from entering the blood collection tube 1 through the fourth through hole.
[0030] A reinforcing rod is vertically fixed between the first fixing plate 6 and the second fixing plate 8. Several reinforcing rods can be provided. Through the reinforcing rods, the connection effect between the first fixing plate 6 and the second fixing plate 8 can be increased.
[0031] Working principle:
[0032] During use, according to the amount of blood to be collected, the distance between the second fixing plate 8 and the bottom of the blood collection tube 1 is adjusted, so that the volume between the second fixing plate 8 and the bottom of the blood collection tube 1 is the amount of blood to be collected. Then, blood collection is carried out in an existing manner, making the inclination direction of the blood collection tube 1 the same as that of the connecting tube 7. The inclination direction of the blood collection tube 1 is referenced through the connecting tube 7. Blood enters the blood collection tube 1 above the first fixing plate 6 through the blood collection needle, and its blood flow direction is to one side of the first through hole. Then, it flows into the second through hole through the connecting tube 7 and then enters the blood collection tube 1 below the second fixing plate 8. When the space between the second fixing plate 8 and the blood collection tube 1 is filled with blood, the blood collection needle is pulled out, and the collection of the required amount of blood can be completed. The amount of blood collected in the blood collection tube 1 is controlled by the volume between the second fixing plate 8 and the bottom of the blood collection tube 1. Since there is still a certain distance between the second through hole of the second fixing plate 8 and the first sealing ring, the residual blood in the connecting tube 7 can be used to fill it, further filling the space between the second fixing plate 8 and the blood collection tube 1 with blood and reducing the residual blood in the connecting tube 7, thereby reducing the increase in the amount of blood and further controlling the amount of blood collected.
Claims
1. A rapid quantitative blood collection test tube, comprising a vertically arranged blood collection tube (1) and a tube cap (3), characterized in that: A first fixing plate (6) is horizontally arranged inside the blood collection tube (1). A second fixing plate (8) is horizontally arranged inside the blood collection tube (1) below the first fixing plate (6). First sealing rings are arranged between the first fixing plate (6) and the second fixing plate (8) and the blood collection tube (1). A first through hole communicating up and down is formed on the right side of the first fixing plate (6). A second through hole communicating up and down is formed on the left side of the second fixing plate (8). The first through hole and the second through hole are connected and communicated through a connecting pipe (7). An adjusting mechanism for adjusting the distance between the second fixing plate (8) and the bottom of the blood collection tube (1) is arranged on the blood collection tube (1).
2. The rapid quantitative blood collection test tube according to claim 1, wherein: The adjusting mechanism includes a first sleeve (2) vertically fixed on the top of the first fixing plate (6). A screw rod (4) in threaded fit with the first sleeve (2) is arranged inside the first sleeve (2). A fixing column is vertically fixed at the top end of the screw rod (4). A third through hole for the fixing column to pass through is formed on the tube cap (3). The top end of the fixing column passes through the third through hole and is located above the tube cap (3). A first bearing is installed between the fixing column and the third through hole. A second sealing ring is arranged between the fixing column above the first bearing and the third through hole.
3. The rapid quantitative blood collection test tube according to claim 2, characterized in that: The first sleeve (2) is fixed on the top of one side of the first fixing plate (6) far away from the first through hole.
4. The rapid quantitative blood collection test tube according to claim 3, wherein: A handle (5) is fixed at the top of the fixing column.
5. The rapid quantitative blood collection test tube according to claim 1, wherein: The adjusting mechanism includes a movable plate (11) horizontally arranged inside the blood collection tube (1) below the second fixing plate (8). A third sealing ring is arranged between the movable plate (11) and the inner side wall of the blood collection tube (1). A fixing rod (13) is vertically fixed at the bottom of the movable plate (11). A fourth through hole for the bottom end of the fixing rod (13) to pass through is formed on the bottom of the blood collection tube (1). The bottom end of the fixing rod (13) passes through the fourth through hole and is located below the blood collection tube (1), and a bottom plate (14) is horizontally fixed. A moving component for moving the bottom plate (14) up and down is arranged on the outside of the blood collection tube (1).
6. The rapid quantitative blood collection test tube according to claim 5, wherein: The moving component includes a second sleeve (10) sleeved on the outside of the blood collection tube (1). Internal threads are formed on the inner side wall of the second sleeve (10). External threads in threaded fit with the internal threads on the inner side wall of the second sleeve (10) are formed on the outer side wall of the blood collection tube (1). The second sleeve (10) is fixed to the bottom plate (14) through a connecting component. A circular groove for the bottom end of the fixing rod (13) to insert into is formed on the top of the bottom plate (14). A second bearing is installed between the fixing rod (13) and the circular groove.
7. The rapid quantitative blood collection test tube according to claim 6, characterized in that: The connecting component includes a fixing pipe (12). The fixing pipe (12) is sleeved on the blood collection tube (1) below the second sleeve (10). The top end of the fixing pipe (12) is fixed to the bottom end of the second sleeve (10). The bottom end of the fixing pipe (12) is fixed to the top of the bottom plate (14).
8. The rapid quantitative blood collection test tube according to claim 7, wherein: A fourth sealing ring is arranged between the fixing rod (13) and the fourth through hole.
9. The rapid quantitative blood collection test tube according to claim 4 or 8, characterized in that: A reinforcing rod is vertically fixed between the first fixing plate (6) and the second fixing plate (8).